Heater



Sept. 7, 1937. J. c. CROWLEY HEATER Filed July 10, 1955 R w gm 5 c IPatented Sept. 7, 1937 TAT i l;

ATENT UFFEQE HEATER Application July i 10,

4 Claims.

This invention relates to hair waving appliances and more particularlyto the pads used in the chamber of the heaters of permanent wavingmachines.

In the permanent waving of hair pads of moisture absorbent material havebeen used in the heaters in which the wound hair is treated for thepurpose of absorbing the moisture of condensation which otherwise mightbe so excessive as to leak from the heaters upon the scalp of the personbeing treated.

Although sanitary reasons make it inadvisable to use the pads fortreating the hair of more than one person, nevertheless it frequentlyoccurs, because of economy and other reasons, that the wet pads areremoved from the heaters, dried, and then reused.

An object of the invention is to provide a pad to be used with theheaters of permanent waving machines which can be used for only onetreatment, since its removal from the heater for the purpose of dryingthe same, acts to destroy it and render it unfit for further use, thusassuring sanitary conditions.

Further and additional objects and advantages will appear hereinafterduring the detailed description of an embodiment of the invention whichis illustrated in the accompanying drawing wherein,

Fig. 1 is an elevational view of one type of heater for a permanentwaving machine and with which the pad may be employed.

Fig. 2 is a sectional view taken substantially on line 2-2 of Fig. 1looking in the direction of the arrows.

Fig. 3 is an elevational View of the heater with the parts thereof inopen position.

Fig. 4 is a detail plan View of the pad, and

Fig. 5 is a sectional view through the pad taken substantially on line5-5 of Fig. 4 looking in the direction of the arrows.

The moisture absorbent pads embodying the present invention may be usedwith various types of heaters for permanent waving machines as, forexample, steam, electric or chemical heaters. However, in order toconveniently illustrate the manner in which the pads are used thepresent illustration discloses a pad embodying the invention employed ina heater of the steam type, such as is shown in the Murray et a1 PatentNo. 1,974,625, issued September 25, 1934.

Briefly, the heater illustrated herein comprises a rotatable rod l0,upon which the hair to be waved is wound and which rod is adapted to belocated in the housing of the heater. The hous- 1935, Serial No. 30,662

ing is'of generally rectangular cross-section and is formed of twosubstantially U-shaped half sections it and i2, pivotally connectedtogether so that they may be opened to receive the rod and then closedupon the rod. The half sections ii and l2 of the housing are securelyclamped and locked together by suitable means, such as the spaced linksI3 pivotally connected to one of the half sections and adapted toreceive between them a tongue it projecting from the other sec tion. Thefree ends of the spaced links 13 have pivotally mounted therebetween acam or eccentric shaped locking member !5 provided with an extendedoperating handle 16. The sections H and i2 on one side thereof areprovided with heat insulating blocks H and with hair clamping blocks i8preferably formed of rubber. The half section i2 of the housing isprovided intermediate its length and in one edge thereof with an 0peningin which is arranged a swiveled fitting l9, whereby a steam conduit 2!]can be connected to the heater in communication therewith. Inasmuch asthe construction of the heater illustrated herein and the mode of itsoperation is fully set forth in said Murray and Lewis Patent No.1,974,625 and is well understood in the art, a more detailed descriptionthereof is unnecessary.

As previously stated, it is preferable to employ in the heaters ofpermanent waving machines pads of moisture absorbing material, for thepurpose of collecting and absorbing the moisture of condensation, sothat danger of the latter leaking from the heater upon the person beingtreated is eliminated. These pads should only be used for one treatment,inasmuch as it would be highly unsanitary to use the pads over and overagain for a number of treatments. Notwithstanding this fact it is thepractice in some beauty shops and similar places to remove the pads fromthe heater after they have been used, dry the same, and then use thepads over again for another customer.

The present invention contemplates the provision of pads of moistureabsorbent material for use in the heaters of permanent waving machines,which can only be used for one operation and which are automaticallydestroyed by the act of removing the pads from the heaters. The pads areindicated at 2! and in this instance are of such size and shape as tofit within the half sections, as clearly shown in Figs. 2 and 3, and areprovided in one edge with a semi-circular recess 22 to accommodate theswiveled fitting l9. Each pad 2! is formed of suitable soft pliable Cirmoisture absorbing material, and is built up of superimposed thin layers23 of the material which are pressed together into adherent relationshipand particularly along the longitudinally extending depressions 2Q whichare formed in. the material by the compressing operation. The pad isprovided with a. number of short slits 25 extending completely throughthe pad and forming weakened zones in the pad. As shown in Fig. 4, thepad is provided with two of the slits 25 which extend angularly acrossthe pad adjacent to the semi-circular recess 22, but it will beunderstood that the number and the arrangement of the slits 25 can bevaried as desired. Following a hair waving operation the pad 2| will besaturated with the moisture of condensation, and when it is attempted toremove the pad from the heater the weakened zones formed by the slits25, in addition to'the frangible condition of the pad because it issaturated with moisture, results in the layers of the pad separating andtearing, wherefore the pad is rendered unfit to be dried and reused.

In the present embodiment the weakened zones formed by the slits 25 areadjacent to the semicircular recess- 22 which, in itself, forms aweakened zone and hence the pad is rendered more susceptible todestruction when it is removed in a moisture laden condition from theheater.

It will be noted that the slits 25 extend in a direction substantiallytransverse to the longitudinal length of the pad. In removing the padfrom the heater the usual practice is tograsp one corner of the pad andthen pull the same out of the heater lengthwise, as distinguished fromgrasping an edge of the pad and removing the same by exerting atransverse pulling action thereon. Since the slits extend substantiallytransversely to the longitudinal length of the pads, it will be seenthat the weakened zones formed by the slits lie substantiallytransversely to the direction in which the force is normally exerted toremove the pad from the heater.

Although a preferred embodiment of the invention has been illustratedand described herein, it should be understood that the invention issusceptible of various modifications and adaptations within the scope ofthe appended claims.

Having thus described my invention I claim:

1. A pad for use within the hair receiving chamber of a permanent wavingheater formed of moisture absorbent material and provided with slitstherethrough and extending substantially transversely thereof andcreating therein weakened zones arranged substantially transversely tothe force normally exerted upon the pad to remove the same from the hairreceiving chamber.

2. A pad for use within the hair receiving chamber of a permanent wavingheater formed of superimposed layers of moisture absorbent materialpressed together into adherent relationship and provided with slitstherethrough and extending substantially transversely thereof andcreating therein weakened zones arranged substantially transversely tothe force normally exerted upon the pad to remove the same from the hairreceiving chamber.

3. A permanent waving appliance comprising in combination a heaterhaving hair clamping means and a heating chamber adapted to receive therod upon which the hair is wound, and a 5 pad arranged in said chamberand formed of moisture absorbent material and provided with slitstherethrough extending substantially trans.- versely thereof andcreating therein weakened zones arranged substantially transversely tothe force normally exerted upon the pad to remove the same from thechamber.

4. A permanent waving appliance comprising in combination a heaterhaving hair clamping means and a heating chamber adapted to receive therod upon which the hair is Wound, and a pad arranged in said chamber andformed of I superimposed layers of moisture absorbent material pressedtogether into adherent relationship and provided with slits therethroughextending substantially transversely thereof and creating thereinweakened zones arranged substantially transversely to the force normallyexerted upon the pad to remove the same from the chamber.

JOHN C. CROWLEY.

